Temporary binder.



PATENTED SEPT. 12, 1905.

W. STRUBING.

TEMPORARY BINDER.

APPLIGATION FILED AUG. 19,1904.

:zEEzEt? 3 UNITED STAEELS PATENT OFFICE.

\VILHELM STRUBING, OF CHICAGO, ILLINOIS, ASSIGNOR TO \VALLACE O. ABBOTT, OF CHICAGO, ILLINOIS.

TEMPORARY BINDER.

Specification of Letters Patent.

Patented Sept. 12, 1905.

Application filed August 19, 1904. Serial No. 221,448.

To (LZJ/ w/mm, [It many concern/.-

Be it known that I, \VILHELM STRUBING, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Temporary Binders, of which the following is a specification.

This invention relates to improvements in temporary binders; and it consists more particularly in an improved locking mechanism for locking one of the combined members to the posts of the other member.

The salient objects of the present invention are to provide an extremely simple springactuated lock which will automatically lock one binding member to the posts of the cooperating member at any desired position of adjustment, to provide a device so constructed that in the act of grasping the movable binder member to shift the latter the lock may be conveniently pressed with the thumb or finger in such manner as to release the binding member and permit it to be adjusted or removed, to provide a construction the working parts of which are entirely exposed and accessible, while at the same time devoid of parts liable to be injured by being so exposed, and in general to provide an improved and simple device of the character referred to.

To the above ends the invention consists in the matters hereinafter described, and more particularly pointed out in the appended claims.

The invention will be readily understood from the followingdescription, reference being had to the accompanying drawings, in which-- Figure 1 is a plan view of a binder equipped with my invention, a part of the cover being broken out to reduce the size of the figure. Fig. 2 is a sectional view of the binder, taken on line 2 2 of Fig. 1 and looking in the direction of the arrows. Fig. 3 is a sectional view taken on the indirect line 3 3 of Fig. l and looking in the direction of the arrows. Fig. 4 is a view similar to Fig. 1, showing a modified construction.

Referring to the drawings, 1 and 2., respectively, designate the upper and lower binder or cover members, the latter being provided, as is common, with a pair of rigid impalingposts 3, suitably seated in the cover member 2. The member 1 is provided with apertures &, which register with the posts 3 3 and through which the latter pass easily. Upon the upper side of the member 1 is secured a plate 5, likewise provided with apertures 6, registering with the apertures at, and upon this plate 5 is pivotally mounted a pair of locking members 7 7 of similar but reversely-formed construction and having a loose pivotal connection with each other at their overlapping ends by means of a stud 8, which is desirably provided with a thumb-knob 9. The locking members are pivotally mounted to the bar 5 at points intermediate their lengths, as indicated at 10, such pivot connection being conveniently formed by means of headed rivetstuds permanently seated in the plate 5. The outer ends of the members '7 are recessed, as indicated at 11, to receive the posts3 and per mit the locking members to extend in alinement with the posts, and those portions 12 of the locking members which extend laterally alongside of the posts are brought to a blunt chisel or ratchet edge, as indicated at13, Fig. 3, and engage corresponding ratchet-notches 14:, formed in the proximate faces of the posts. The members 7 are acted upon by a spring, so as to be held yieldingly in engagement with the ratche t-notches of the posts. To this end a wire spring 15 is conveniently formed by coiling its ends around the pivot-studs 10, its intermediate portion being engaged with the connecting-stud 8 below the knob 9 thereof, the spring being so formed as to normally exert a tension tending to flex the locking members out of alinement with each other and into engagement with the posts. Such spring is, however, conveniently shaped so that it will fiex the locking members but little beyond their normal locking position, so that the upper ends of the posts may be entered and force the locking members back automatically, the tips of the posts 3 being to this end made tapering, as shown clearly in Fig. 2.

In Fig. 4C a modilieation is shown in which the engaging ends of the locking members 7 instead of being sharpened and arranged to engage ratchet-notches are cut off obliquely, as indicated at 16, of the right length to engage the inner sides of the posts 23 wedge fashion that is to say, the inclined end 16 is formed approximately tangential to an arc struck from the pivot-point of the member through the apex of the angle 17, formed at the junction of the shorter side of the locking member with the said inclined ends. The

operation of this device is substantially the same as that of the previously-described one. It will be noted, however, that by this construction the posts may be made perfectly smooth and the locking members will engage and hold them at any exact position to which they are adjusted.

WVhile I have herein shown and described preferred embodiments of the invention, yet it will be understood that the details of construction may be modified without departing from the invention.

I claim as my invention 7 1. A temporary binder comprising in combination a pair of back or cover members, one of which carries binder-posts and the other of which is provided with post-receiving apertures, and a locking device carried by the latter and comprising a locking-bar pivotally mounted upon said back member and extending longitudinally between said post-receiving apertures, said bar being pivoted at two points intermediate its ends, and a spring member mounted upon said bar and secured at its ends to said pivots and operating to flex the middle portion of said locking-bar to move said ends into locking position.

2. In combination with a post-binder, a looking device mounted upon the post-receiving member thereof, comprising a locking-bar consisting of two members arranged to extend in approximate alinement with each other and having a loose pivotal connection at their meeting ends, means pivotally connecting each of said locking members to the binder member at points intermediate the post-apertures and the pivotal center of the device, and a spring secured to said bar at its ends and at its middle and arranged to normally flex said locking members into position to engage the posts extended through said apertures.

3. In a post-binder, the combination with a post-receiving member of the binder, of a locking device comprising a pair of flat links each pivotally connected with the binder member at a point between its ends and the proximate ends of the two links having a loose pivotal connection with each other, a bow-spring connected with the pivot-supports of the links and at its intermediate portion operatively engaging the connected ends of the links, the remote ends of said locking-links being arranged to reciprocate across the post-apertures of the binder member, for the purpose set forth.

WM. STRUBING.

Witnesses:

DONALD lVICLENNAN, H. B. SHATTUcK. 

